VBA_TMP.vba и VSTA_dG.zip - unneccessary files?

VBA_TMP.vba и VSTA_dG.zip - unneccessary files?

After restore backup of my project as new project i found that size of new backup was increased to approximately 1.5 Mb. Rapid analizis point me to two new files that as i think i can remove: VBA_TMP.vba и VSTA_dG.zip. As I understand these files contains information from old backup before restore it into new project.
Can I delete these files to decrease size of backup?

This is a migrated post! Originally posted on 28.01.2013 by user stolyarov_as. Please be aware that information can be outdated.